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Patented-flab; 7, I899. A. H. .1. SCHULKE. AGETYLENE GAS BURNER.

(Application filed J'u ne 9, 1897.

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UNITED STATES PATENT 0 AUGUST HEINRICH JULIUS SOHI ILKE, OF BERLIN, GERMANY.

ACETYLENE-GAS BURNER.

SPECIFICATION forming part of Letters Patent No. 619,000, dated February 7,1899.

' Application filed June 9, 1897. Serial No. 639,978. (No model.)

To all whom it may concern.

Be it known that 1, AUGUST HEINRICH JU- LIUs SOHi'ILKE, engineer, a subject of the Emperor of Germany, and a resident of 94 Leipzigerstrasse,Berlin,in the Empire of Germany, have invented a new and useful Burner for Acetylene Gas, of which the following is a full, clear, and exact description.

The invention has been patented in Switzerland, dated May 24, 1897, No. 14,381; in Sweden, dated May 17, 1897, No. 8,907; in France, dated May 18, 1897, No. 267,009; in

Denmark, dated May 20, 1897, No. 1,597,

' lary tubes fixed in a chamber or cap screwed parts of the flame.

The capillary tubes may be ray or jet shape or preferably so arranged that each two tubes are directed obliquely or converging toward one another, so that the streams or jets of gas issuing from them strike against one another at an angle and after their combination produce a powerful illuminating flame which forms a flattened and comparatively large light-emitting surface.

The accompanying sheet of drawings illustrates various methods of carryingthe invention into effect.

Figure 1 shows a longitudinal section of an acetylenegas burner made in accordance with the invention with ray or jet shaped capillary tubes. Figs. 2, 3, and 4 show various forms of outlets from the capillary tubes. Figs. 5 and 6 show in elevation and plan, respectively, a burner with capillary tubes arranged in pairs, the ends of the tubes composing each pair being directed obliquely toward one another. Figs. 7 and 8 show further modifications of the burner.

In all the arrangements shown the capillary tubes Ct are fixed at their lower ends in the. cover of a chamber or cap I), which chamber or cap can be screwed onto the gas-delivery pipe. (Not shown in the drawings.) The tubes at extend upward and outward to enable the air supporting combustion to pass freely from all sides between the tubes to the outlets thereof and to the-flames in parallel streams.

In the arrangement shown in Fig. 1 the tubes Ct are arranged in ray or jet form.

In the arrangement shown in Figs. 5 and 6 the tubes at issue from the circumference of the cover of the cap I) and are then bent so that the outlets of the tubes forming each.

pair are directed obliquely toward one another in orderthat the gas streams or jets issuing from them shall strike against one another at an angle. By this means a spreading out of the flames and an increase of their lighting power is effected.

In the arrangement shown in Fig. 7 the capillary tubes are fixed in the cover of the chamber 1), and each of these tubes is divided at its upper end into two branches (1 which are so bent that the streams of gas issuing from them strike against one another at an angle.

In the burner shown in Fig. 8 only two tubes at are shown, the outlet ends of which are directed obliquely toward each other.

In order to conduct the air for supporting combustion without hindrance or the formation of eddies to the acetylene gas issuing from capillary tubes a, the latter arechambered off or reduced to a conical shape at their outlet ends, or they may take either of the forms shown in Figs. 2, 3, and 4. The fine outlet-openings c of the tubes at open at their upper ends into a chamber cl, so that the flames g, formed by the issuing acetylene gas, hardly touch or do not touch at all the walls of p the tube ends, whereby the deposit of carbon is avoided. The edge of the chamber d is somewhat sharpened, so that between it and the flame g a small zone of blue flame fis produced by the issuing acetylene'gas, carrying with it the air rising up to the tubes, and thereby effecting an abundant addition of air to the acetylene gas at the edge of the chamber 01, which gives rise to the production of the aforesaid zone of blue flame and prevents completely the deposit of carbon at the ends of the tubes. The chamber d may be made cubic, conical, or trumpet shape or any other suitable form; It may be formed in a simple manner by means of a small ring with a projecting edge pushed onto the end of the tube.

When a glass chimney is employed, springarms h, Fig. 1, are arranged on the burner, the ends of which arms come a little above the outlet-openings of the tubes and are intended to hold the chimney fast. A jacket 41 may be placed around the tubes at to serve as a globe or shade carrier, such jacket being supplied with outwardly-extending arms to support the globe or shade and a sufficient number of holes to allow 0f the access of air through it to the tubes a.

Having now particularly described'and ascertained the nature of this invention, I declare that what I claim, and wish to secure by Letters Patent, is-

In an acetylene-gas burner the combination of the gas-chamber with several capillary tubes whose outlets comprise chambers whose width and depth are about equal.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

AUGUST HEINRICH JULIUS SCIlllLKE.

\Vitnesses FRANZ KoLLM, GUSTAV TAUER. 

